Senior RF and Antennas System Engineer

Job Title:

Senior RF and Antennas System Engineer

Job Category:
Engineering

Time Type:
Full time

Minimum Clearance Required to Start:
None

Employee Type:
Regular

Percentage of

Travel Required:

Up to 10%

Type of Travel:
Local

* * *

CAC I is seeking a Senior RF and Antenna Systems Engineer to support the design, development, integration, and test of advanced RF and antenna solutions for mission-critical defense applications. This role focuses on phased array antennas, reflector antenna systems, beamforming architectures, and RF subsystem integration across the full engineering lifecycle-from concept development and requirements definition through prototype development, test, and transition to fielded systems.

You will work in a collaborative environment with multidisciplinary engineering teams to deliver innovative, practical solutions for complex technical challenges.

• Lead and support the design, development, integration, and test of advanced RF, phased array, and reflector antenna systems.
• Develop system and subsystem architectures, requirements, and trade studies for antennas, apertures, beamforming approaches, RF distribution networks, feeds, and associated hardware.
• Perform system-level analyses including RF propagation, link budgets, range estimates, cascade analysis, interference assessments, and sensitivity evaluations.
• Support prototype development, fabrication, and assembly of RF systems and antenna hardware.
• Develop and execute test plans and procedures for laboratory, chamber, range, and field testing; analyze results and recommend design improvements.
• Present technical concepts, tradeoffs, and program status to leadership, customers, and stakeholders.
• Contribute to proposals, IRAD efforts, technical volumes, and BOE development.
• Collaborate across multidisciplinary teams and provide technical guidance to junior engineers as needed.

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Physics, or a related technical field.
• 10+ years of experience in RF systems, antenna systems, or related mission applications.
• Experience designing, analyzing, integrating, and testing RF and antenna systems, with emphasis on phased arrays and/or reflector antennas.
• Strong knowledge of RF propagation, link budgets, range estimates, cascade analysis, interference effects, and system sensitivity.
• Experience developing and managing system and subsystem technical requirements.
• Hands-on experience with RF test equipment such as network analyzers, spectrum analyzers, and power meters.
• Familiarity with antenna performance metrics such as gain, beamwidth, sidelobes, efficiency, scan loss, and aperture illumination.
• Experience working in multidisciplinary engineering teams.
• Strong written and verbal communication skills.
• Experience supporting proposals and BOE development.
• Ability to work independently in a fast-paced environment.

• Master’s degree or higher in Electrical Engineering, Electromagnetics, RF/Microwave Engineering, or a related field.
• Experience with AESA, digital or hybrid beamforming, array calibration, and beam steering validation.
• Experience with reflector antenna systems, including feed design, aperture illumination, alignment, and efficiency optimization.
• Experience with tools such as Microwave Office, Keysight Genesys, MATLAB, and/or Python.
• Understanding of spherical- and planar near-field antenna ranges and near-field to far-field transformation methods.
• Familiarity with electromagnetic modeling, antenna simulation, and RF analysis tools.
• Experience supporting defense, intelligence, or other government mission customers.
• Active TS/SCI clearance.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose - to ensure the safety of our nation.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off…